21279104

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 128

約数和(自身を含む): 56401920

約数和(自身を除く): 35122816

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 44, 56, 64, 68, 77, 88, 112, 119, 127, 128, 136, 154, 176, 187, 224, 238, 254, 272, 308, 352, 374, 448, 476, 508, 544, 616, 704, 748, 889, 896, 952, 1016, 1088, 1232, 1309, 1397, 1408, 1496, 1778, 1904, 2032, 2159, 2176, 2464, 2618, 2794, 2992, 3556, 3808, 4064, 4318, 4928, 5236, 5588, 5984, 7112, 7616, 8128, 8636, 9779, 9856, 10472, 11176, 11968, 14224, 15113, 15232, 16256, 17272, 19558, 20944, 22352, 23749, 23936, 28448, 30226, 34544, 39116, 41888, 44704, 47498, 56896, 60452, 69088, 78232, 83776, 89408, 94996, 113792, 120904, 138176, 156464, 166243, 167552, 178816, 189992, 241808, 276352, 312928, 332486, 379984, 483616, 625856, 664972, 759968, 967232, 1251712, 1329944, 1519936, 1934464, 2659888, 3039872, 5319776, 10639552, 21279104]

約数ペア:

[(1, 21279104), (2, 10639552), (4, 5319776), (7, 3039872), (8, 2659888), (11, 1934464), (14, 1519936), (16, 1329944), (17, 1251712), (22, 967232), (28, 759968), (32, 664972), (34, 625856), (44, 483616), (56, 379984), (64, 332486), (68, 312928), (77, 276352), (88, 241808), (112, 189992), (119, 178816), (127, 167552), (128, 166243), (136, 156464), (154, 138176), (176, 120904), (187, 113792), (224, 94996), (238, 89408), (254, 83776), (272, 78232), (308, 69088), (352, 60452), (374, 56896), (448, 47498), (476, 44704), (508, 41888), (544, 39116), (616, 34544), (704, 30226), (748, 28448), (889, 23936), (896, 23749), (952, 22352), (1016, 20944), (1088, 19558), (1232, 17272), (1309, 16256), (1397, 15232), (1408, 15113), (1496, 14224), (1778, 11968), (1904, 11176), (2032, 10472), (2159, 9856), (2176, 9779), (2464, 8636), (2618, 8128), (2794, 7616), (2992, 7112), (3556, 5984), (3808, 5588), (4064, 5236), (4318, 4928)]